REUSABLE: This TENS electrodes pads can be used multiple times for optimal relief from discomfort. Simply use the resealable package to keep your pads fresh and clean. Superior Self-adhesive: This premium TENS replacement pads ensure a firm and comfortable attachment to your back, chest, leg, shoulder and arms, knee or sciatic nerve with ease! Trusted Quality: This TENS electrodes pads are FDA Cleared OTC with resealable packaging for durability. They are latex-free and non-irritating to ensure users of all skin types have a safe, comfortable experience!